Vacuum milling method for metal compound plate

Abstract

The invention provides a vacuum milling method for a metal compound plate, which relates to a compound plate production method and comprises the following steps that: 1, circumference lead angle beveled edges are processed on the circumference of the single side of a base plate, and the circumference dimension of a stainless steel plate is smaller than the dimension of the circumference lead angle beveled edges; 2, a right-angle hole is drilled between the lead angle beveled edges; 3, the stainless steel plate is flatly paved on the lead angle beveled edges side of the base plate, in addition, a soldering flux layer is flatly paved between the stainless steel plate and the base plate, and the circumference sealing welding is carried out on a pressure platform; 4, the vacuum pumping is carried out through the right-angle hole of the base plate, and the sealing and plugging is carried out after the vacuum pumping; 5, the two prepositive blank stainless steel surfaces are combined, in addition, a high-temperature adhesion-prevention agent layer is flatly paved between the two prepositive blank stainless steel surfaces, then, separation plates with the same circumference lengths are in dot welding on the circumference, and next, submerged arc welding sealing welding is carried out between the two lead angle beveled edges and the separation plates; 6, a plurality of vent holes are drilled on a sealing and welding ring frame and the separation plates, 7, the hot milling is carried out; and 8, the edge milling separation is carried out. The vacuum milling method has the advantages that the prepositive blank processing and the vacuum pumping are firstly carried out, then, air holes are drilled, excessive air can be exhausted during the milling, and the plate material quality is ensured.

Description

Technical field: [0001] The invention relates to a production method of a clad plate, in particular to a vacuum rolling method of a metal clad plate. Background technique: [0002] Metal composite panels refer to different metal composite molding panels, generally referring to the composite of stainless steel plates as cladding steel plates and ordinary carbon steel as base plates. [0003] The pressure vessel requires not only the inner wall to be stainless, but also requires a certain wall thickness. The cost of using all stainless steel plates is high, so the requirement to use stainless steel clad plates is put forward. Chinese patent 200510033870 "Method for Producing Brazed Hot-Rolled Metal Composite Plate Using Composite Blank" discloses a technical solution. The scheme is to stack two clad metal plates and two basic metal plates firstly, then weld the partition plate on the periphery, then carry out ring edge sealing welding, and finally drill holes on the surroundi...

AI Technical Summary

Problems solved by technology

The disadvantage of this production process is that the vacuuming temperature is required to be 400-450°, and the heating process is time-consuming and energy-consuming.

After the two composite laminates are separated, the bubbling will form depressions, the surface of the composite layer is not smooth, and the thickness of the composite layer will produce uneven spots, which will affect the quality and appearance of the board, and do not meet the strict standards for pressure vessel materials.

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